Take a glance of a part of the life cycle of plasmodium given below as events A, B, C and D along with their description
Events Description
Parasites reproduce asexually in the red bloods cells, bursting the red blood cells and causing cycles of fever | |
Sexual stages (gametocytes) develop in intestine of mosquito | |
Fertilization and development take place in intestine/stomach of mosquito | |
Mature infective stages (sporozoites) escape from the intestine and migrate to the mosquito salivary glands |
How many of the above events are correctly described?
1. One
2. Two
3. Three
4. Four
Fill in the blanks in the different columns of the table given below
Disease | Causal organism and Part it inputs |
Medium of transfer |
Common cold | A | Droplets from sneezing of infected persons |
B | Trichophyton Skin, nails and scalp |
Using towels of infected individuals |
Pneumonia | C | Droplets/aerosols Released by an infected person, sharing utensils |
Filariasis | Wuchereria Lymphatic vessels | D |
In which one of the following options all the blanks A, B, C and D are correctly filled.
(1) A- Rhinovirus. Nose and respiratory passage not lungs
B - Ringworm
C - Haemophilus influenzae. Alveoli of lungs
D - Contaminated food and water
(2) A- Coryza virus. Alveoli of lungs
B - Ringworm
C - Streptococcus pneumoniae. Nose and respiratory passage
D - Culex mosquito
(3) A- Rhinovirus. Nose and respiratory passage not lungs
B - Ascariasis
C - Haemophilus influenzae. Lungs
D - Culex mosquito
(4) A- Rhinovirus. Nose and respiratory passage not lungs
B - Ringworm
C - Haemophilus influenzae. Alveoli of lungs
D - Culex mosquito
Mark out the incorrect statement regarding infection of Entamoeba histolytica
1 It is a type of monogenetic parasite
2 Stools characterised with excess mucous and blood clots
3 It is the parasite of small intestine of the human being
4 Housefly act as mechanical carriers of the cysts to contaminate the food and water
Release of which of the following is responsible for recurrent malarial symptoms?
1 Sporozoites
2 Haemozoin
3 Gametes in blood
4 Hemoglobin
Mucus coating of the epithelium lining the respiratory, gastrointestinal and urogenital tracts, helps in trapping microbes entering our body. This is included in which of the following barriers?
1 Physical barriers
2 Physiological barriers
3 Cellular barriers
4 Cytokines barriers
Which of the following is mismatched with respect to the following events which occur in the life cycle?
1 Erythrocytic schizogony | : The rupture of RBCs is associated with the release of a toxic substance hemozoin, which is responsible for the chill and high fever |
2 Gametocytes | : Sexual stages develop in intestine of mosquito |
3 Fertilization | : Takes place in intestine/stomach of mosquito |
4 Schizogony in liver cells | : The parasite reproduces asexually in liver cells bursting the cell and releasing merozoites into the blood |
In malaria infection the rupture of RBCs is associated with release of a toxic substance called
1 Hypnotoxin
2 Haemozoin
3 Ascaron
4 Haemotoxin
(i) Thymus
(ii) Spleen
(iii) Appendix
(iv) MALT
(v) Bone marrow
How many of the above are secondary lymphoid organs except?
1. ii, iii, iv only
2. i, v only
3. i, ii, iii, iv, v
4. i, ii, iii, iv only
AIDS is caused by HIV, among the following, which one is not a mode of transmission of HIV?
1. Transfusion of contaminated blood
2. Sharing the infected needles
3. Shaking hands with infected prersons
4. Sexual contact with infected persons
Which of the following statements is not true regarding active acquired immunity :-
1. It is species non specific
2. It is antigen specific
3. It shows slow but long lasting effect
4. It is used in prophylaxis